Re: Experiencing very slow browsing at times (atheros wireless)

From:

Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx>

Date:

Tue, 22 May 2007 20:28:48 -0700 (PDT)

:It was run on the client. 192.168.1.50 is my DF workstation which i ran
:tcpdump on. 192.168.1.40 is my server (punchyouremployer.com).
:192.168.1.1 is my default gateway, 220.233.111.100 is my public IP.
:There is DMZ configured on the router pointing to 192.168.1.40
:
:Petr
There's something very not right. If tcpdump was run on your
client then the client DID receive the big packets, but didn't
ack them. WTF ? Why isn't it acking them?
Maybe there is a checksum problem or something. Do you have any
hardware accel features turned on on your client? Do 'ifconfig' and
dump the output. Try turning them off.
Maybe also try turning off TCP sack and window scaling
(net.inet.tcp.sack=0, net.inet.tcp.rfc1323=0), in case there's an
issue there. I noticed that the server is using both, and there
could be a bug on the server (or in DragonFly, but more likely on the
server if that turns out to be the problem).
-Matt
Matthew Dillon
<dillon@backplane.com>